Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
July 13, 2025
Submitted
August 15, 2025
Operation
Air carrier
Aircraft
N902WN
Make and model
Boeing 7377H4
Aircraft serial
36615
Aircraft time
57,234 hours, 33,409 cycles
Part
Seat Track
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON PASSENGER CABIN SEAT TRACK ON TOP/CROWN AND IN WELL AT BS 540 - 727B LBL 25 WL 208. AREA BLENDED IS L=5'' BY W=.5'' BY D=.024''. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-52-1A-1. REMOVED SEAT TRACK BS 540-727B LBL 25 WL 208 IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED SEAT TRACK BS 540 - 727B IAW SRM 51-40-05-0G-0 AND DWG 144A5300 REV E. INSTALLED 100% TEMPORARY AND PERMANENT FASTENERL IAW SRM 51-40-02-0G-0, DWG 144A5300 REV E AND SOPM 20-50-1. COMPLETED INSTALLATION OF FASTNERS IAW SRM 51-40-04-0G-0.

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